Replacing springs with Channel Balance

Question

I have double hung wooden windows (Mfr: Windsor Windows; circa 1995)that have balance springs in the jambliner connected to friction shoes (#15-104).

I would like to replace these springs with channel Balance (similar to series 751) with equivalent friction shoes for this adaptation.

The jambliners with the friction shoes and spring is exactly like the one submitted by another customer in 2012. (From a contractor in Dundee, IL under the subject Hurd Compression Balance Spring.

Thanks,

Tom · Accepted Answer

I'm afraid the Series 751 can't install in the kind of jamb liner you've described. If you have a 15-104 friction shoe, then that means your spring is built into the jamb liner; in other words, the jamb liner is functionally the balance itself. You won't be able to install a different type of balance inside of it.

Since these are wood windows, I recommend contacting a local mill work. They should be able to set you up with new jamb liners entirely.